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Renesas HZ6A2L92TA
- Part No.:
- HZ6A2L92TA
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6A2L92TA.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:180,000
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Product details
Overview
HZ6A2L92TA from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 5.45 V (min 5.3 V / max 5.6 V), 400 mW power dissipation, 80 Ω dynamic impedance at 0.5 mA, and −55°C to +175°C storage temperature range. It serves as a stable reference in low-drift power supply feedback paths and sensor biasing networks.
For engineers reviewing the HZ6A2L92TA datasheet, HZ6A2L92TA pinout, HZ6A2L92TA application, or HZ6A2L92TA equivalent, key selection criteria include zener voltage tolerance, noise performance relative to legacy HZ series, thermal coefficient behavior below 6 V, and DO-35 package compatibility with through-hole PCB layouts requiring <1.6 mm board thickness.
Technical Context
This device operates as a two-terminal shunt regulator with DC-tested zener characteristics, specified at IZ = 0.5 mA and VR ≤ 2.0 V. Its low noise level-approximately 1/3 to 1/10 that of standard HZ-series diodes-is achieved via optimized silicon planar junction design and process control.
The HZ6A2L92TA exhibits a negative zener voltage temperature coefficient (γZ) typical of sub-6 V Zeners, with values near −0.06 %/°C (≈ −3.3 mV/°C) per Figure 2, and maintains stable rd ≤ 80 Ω across its rated current range without requiring external bypass capacitance for noise suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.3 V min / 5.6 V max at IZ = 0.5 mA - defines tight 300 mV tolerance band for precision reference use |
| Dynamic Resistance (rd) | ≤ 80 Ω at IZ = 0.5 mA - ensures minimal output voltage shift under load transients |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact through-hole designs without forced cooling |
| Reverse Leakage (IR) | ≤ 1 μA at VR = 2.0 V - enables high-impedance bias networks with negligible error current |
| Junction Temperature (Tj) | 175°C maximum - allows reliable operation in industrial ambient environments up to 125°C with derating |
| Noise Reduction | ≈1/3–1/10 vs. HZ series - directly lowers RMS noise floor in audio preamp references and ADC voltage references |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A, Renesas code SC-40), orange body color, navy blue cathode band, mass ≈ 0.13 g, dimensions L = 26.0 mm, φD = 2.0 mm, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated voltage node; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground return | Provides low-impedance path to system ground; trace routing affects noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener junction | Reduces RMS broadband noise by ≥70% vs. standard HZ diodes-critical for 24-bit SAR ADC references |
| Stable low-impedance regulation | rd ≤ 80 Ω ensures <±1.5 mV output shift under ±100 μA load variation at 5.45 V |
| Wide operating temperature range | Functional from −55°C to +175°C junction-supports under-hood automotive and downhole instrumentation |
| Tight VZ tolerance | ±300 mV window at 5.45 V enables direct replacement in legacy HZ6A2L designs without recalibration |
| DO-35 mechanical compatibility | Standard 26 mm length and 2.0 mm diameter allow drop-in use in existing through-hole tooling and wave-solder fixtures |
Applications
| Audio Preamp Reference | Industrial Sensor Biasing |
|---|---|
Use Scenario: Low-noise voltage reference for microphone preamplifier gain-setting networks in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Provides stable 5.45 V bias point for JFET input stages, minimizing hiss and hum contribution. Use Value: 70–90% lower diode-generated noise versus standard HZ6A2L enables >110 dB SNR in analog signal chain. |
Use Scenario: Precision excitation source for RTD and strain gauge Wheatstone bridges in factory-floor temperature and pressure transmitters. IC Role / Device Role / Timing Role: Delivers low-drift, low-noise reference voltage to bridge top rail, rejecting common-mode supply ripple. Use Value: ≤80 Ω dynamic impedance limits bridge output error to <0.02% FS under 100 μA load modulation. |
| Medical Instrumentation Reference | Programmable Logic Controller Input Conditioning |
Use Scenario: Stable reference for analog front-end of portable ECG amplifiers where battery-powered operation demands ultra-low leakage. IC Role / Device Role / Timing Role: Supplies regulated bias to op-amp rails and ADC reference inputs while drawing <1 μA reverse current at 2 V. Use Value: Sub-μA leakage prevents measurable offset drift in high-Z electrode sensing paths over 8-hour clinical sessions. |
Use Scenario: Input voltage clamping and level-shifting element in 24 VDC digital input modules of industrial PLC backplanes. IC Role / Device Role / Timing Role: Shunts transient overvoltage spikes to ground while maintaining precise 5.45 V logic threshold for optocoupler drive circuitry. Use Value: 400 mW Pd rating sustains repeated 1 kV/μs surge events without parameter shift or catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5222BS | Surface-mount SOD-123 package; VZ = 3.3 V nominal; rd = 17 Ω; Pd = 350 mW | Requires PCB redesign for SMT assembly; unsuitable for >100 °C ambient due to lower Tj rating | Select only when space-constrained layout prohibits axial DO-35 and 3.3 V reference suffices |
| Vishay BZX55-C5V6 | DO-35 package; VZ = 5.6 V nominal; rd = 40 Ω; no published noise spec; Pd = 500 mW | Higher VZ tolerance (±5%) and uncharacterized noise performance limit use in precision analog systems | Acceptable for non-critical power supply feedback where cost is primary driver and noise is not specified |
Compared with MMBZ5222BS and BZX55-C5V6, the HZ6A2L92TA delivers verified low-noise operation in a proven DO-35 form factor with tighter VZ tolerance and documented thermal stability-making it the preferred choice for analog signal chains demanding repeatable 5.45 V reference accuracy.
Availability
HZ6A2L92TA is available at Aetrix Electronics and suitable for audio preamplifier references, industrial sensor biasing networks, and medical instrumentation analog front-ends requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZ6A2L92TA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZ-L Series was developed specifically for low-noise voltage reference applications in high-fidelity analog systems, extending Renesas' legacy in precision discrete components with enhanced junction-level noise control.
FAQ
What is the exact zener voltage range specified for HZ6A2L92TA?
The HZ6A2L92TA has a guaranteed zener voltage range of 5.3 V minimum to 5.6 V maximum, measured at IZ = 0.5 mA and Ta = 25°C. This 300 mV window reflects tight binning within the HZ6A2L variant group and is confirmed in the REJ03G0182-0300 datasheet Table on page 2. The nominal value is 5.45 V, making HZ6A2L92TA suitable for applications requiring stable mid-5 V references.
Does HZ6A2L92TA have a documented noise specification compared to standard Zener diodes?
Yes-HZ6A2L92TA is explicitly characterized for low noise: its noise level is approximately 1/3 to 1/10 that of the legacy HZ series, as stated in the "Features" section of the REJ03G0182-0300 datasheet. This reduction stems from process and junction design optimizations, and the specification applies directly to HZ6A2L92TA as a member of the HZ-L Series.
What is the maximum power dissipation and thermal derating behavior of HZ6A2L92TA?
HZ6A2L92TA has a maximum power dissipation of 400 mW at Ta = 25°C. Derating begins linearly above 25°C ambient, with full derating to zero power at 175°C junction temperature. The device's 175°C maximum junction temperature allows operation in high-temperature industrial environments when mounted on FR-4 PCBs with appropriate copper area and airflow.
Is HZ6A2L92TA compatible with standard DO-35 mounting and soldering processes?
Yes-HZ6A2L92TA uses the industry-standard DO-35 glass axial package (JEITA code GRZZ0002ZB-A), with 26 mm length, 2.0 mm diameter, and 4.2 mm lead spacing. It is fully compatible with wave soldering, hand soldering, and automated axial insertion equipment. The orange body and navy blue cathode band provide unambiguous polarity identification during assembly.
What is the reverse leakage current specification for HZ6A2L92TA, and at what test condition?
HZ6A2L92TA has a maximum reverse leakage current (IR) of 1 μA, tested at VR = 2.0 V and Ta = 25°C. This low leakage supports high-impedance bias networks and minimizes error current in precision reference applications-confirmed in the "Electrical Characteristics" table on page 2 of the REJ03G0182-0300 datasheet.
HZ6A2L92TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZ6A2L92TA FAQ
1.How can I place an order for HZ6A2L92TA through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6A2L92TA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HZ6A2L92TA reliable?
The price and inventory of HZ6A2L92TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6A2L92TA is usually 5 days.
3.What payment methods are accepted for HZ6A2L92TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6A2L92TA transactions.
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4.How is shipping managed for HZ6A2L92TA?
HZ6A2L92TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6A2L92TA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HZ6A2L92TA?
For technical support, including HZ6A2L92TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6A2L92TA requirements.
6.How does Aetrix verify that HZ6A2L92TA is sourced from the original manufacturer or authorized distributors?
All HZ6A2L92TA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HZ6A2L92TA meets industry standards.
7.What is the process for return or replacement of HZ6A2L92TA?
All HZ6A2L92TA units undergo pre-shipment inspection (PSI). If there is an issue with HZ6A2L92TA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HZ6A2L92TA part is unused and in its original packaging.
Return procedure for HZ6A2L92TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ6A2L92TA Tags
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